Marvin the Martian and the Falling Star
(movie box cover idea, lol)
Marvin the Martian, while trying to get a good view of Venus, witnesses an asteroid falling to Earth. Surprised, confused, and interested by this, he goes to investigate the wreckage.
In the crater and rubble (which the Martian is the first to reach), Marvin finds the egg of an octopus alien just hatching. He immediately becomes very attached to it, because not only is it another alien — something he doesn't have a lot of contact with, being so lonely — but it's a child, something he would very deeply like to take care of as if it were his own.
I imagine there would be a montage of him bonding and raising this creature for some time (and at least one of the clips in this montage being him lying to either Bugs, Daffy, Porky, or Lola about his "baby" being one he adopted, never showing them what it really looks like), taking care of it for many long months back in Mars...
Until the parent of the baby comes looking for it.
The parent is a creature that very obviously parodies H.P. Lovecraft's Cthulhu.
Marvin would panic and flee to Earth with Blorp (the baby — Marvin gave it that name), but Morlith (the Cthulhu-like creature) would follow him. Marvin would try to run from and fight against the Morlith, but it just follows. He tries to get help from people and Toons, and near the middle of the movie, interacts with an undercover government agent who takes him and Blorp, and Marvin and Blorp are held by the government officials in charge of the facility they're being held in. Morlith creature finds Marvin and Blorp, and consumes the facility, nearly snatching up Marvin and Blorp, but Bugs Bunny, Daffy Duck, Porky Pig, and Lola Bunny all come to rescue him (via the "distress signal" — which is the text "SOS" on Marvin's watch to Daffy's phone, which Daffy begrudgingly taught him how to do — he'd sent Daffy while he and the baby were being pursued by the undercover government agent before being taken captive). They narrowly escape in Bugs' truck.
The six now have to figure out what to do before Earth is destroyed in Morlith's pursuit of Marvin. ...Or that's what they thought it was this whole time.
In a moment of panic, Marvin accidentally allows the blanket Blorp has been wrapped in this whole time to fall from its face, and everyone sees the martian's "adopted baby" is the offspring of a massive cosmic space octopus bent on getting it back.
Daffy and Lola demand to know why they were lied to. Bugs is also very clearly annoyed, stressed, confused, and disapproving. Porky, in a concerned panic, tells Marvin he has to give Blorp back to the alien. Then, hopefully, it will leave.
But Marvin absolutely refuses.
He states that he knows he should give the baby back. That he's known the entire time. But he loves Blorp, that it's *his* baby (in the sense that it's emotionally his rather than physically), and that's why he hasn't let it go.
It dawns on the other four why they were lied to.
Porky and the others then explain to Marvin that Morlith must be horribly scared about Blorp's safety. That's why it's been after Marvin and destroying everything in its way to get to Blorp. That baby also deserves to be with its parent, and that taking it from them isn't fair. If he loved Blorp, he would let it choose its family.
That it's not Marvin's choice to make, whose baby it is.
That family is up to the child to make, and that if he loved Blorp he would understand and be happy regardless.
This gets through to Marvin, and makes him understand how serious this is.
The six then go to find Morlith creature. It's obviously hostile when it sees them, and tries to attack, but they finally get close enough for Marvin to jump out of the truck. He's still very deeply about having to give Blorp up, and is very clearly on the verge of tears, but understanding that it's what is necessary, he offers the baby for the alien to take.
The alien looks appalled at first, but, understanding there are no tricks, it accepts the child. It looks a bit confused, but truly appreciative as it calms down, before departing Earth again.
Marvin then breaks down as he watches Morlith leave with Blorp. He knows he did the right thing...but that didn't rid him of just how much he adored that baby. Even if countless things could have been wrecked by him having it.
Bugs, Daffy, Porky, and Lola approach slowly, seeing just how badly this is breaking the lonely martian. They all group hug, with Marvin shaking and crying in the center.
There is a time skip to a few months later. Marvin is on Mars again, where he is busy studying Earth, writing down notes about things he observes. He is suddenly smacked in the helmet by a letter in a language space aliens can apparantly only read (as Marvin can understand it, but to the viewer, it looks like gibberish). Curious about what Marvin describes as an "invite to a strange new planet", he hops on his spaceship and flies to the coordinates listed in the letter.
He arrives on a lush island, where, after he wanders around some, is met and cornered by Morlith, the very alien from a few months ago. Marvin, unarmed and obviously terrified due to the last encounter he, the other Looney Tunes cast, and really all of Earth, had with this creature, cowers.
As a matter of fact, when Morlith instead taps him on his shoulder, he slowly relaxes and looks to where it motions.
He is then playfully tackled by Blorp, who looks thrilled to see him. Marvin looks overwhelmed with joy as he giggles and laughs.
This ending implies Marvin is allowed, by Morlith, to visit the new planet to see it and Blorp whenever he chooses, not only for doing the right thing in taking care of Blorp, but for taking care of Blorp even when he was so afraid.
This movie is meant to take a spin on the film trope of a parent monster's egg being taken by the protagonist, and the protagonist not realizing the egg is the reason they're being chased until the end, when they return it and end the threat.
This is meant to be different, though. Marvin knew from the moment he began getting pursued by Morlith that it was after the egg. But he loved Blorp so much, he didn't WANT to give it up. The entire movie could have been avoided, but Marvin's love for Blorp stopped him from just giving it up. The entire movie is him fighting between what he's known the entire time was right and wrong. He is rewarded for doing the right thing — by allowing the baby to choose what they wanted instead of him just wrongly keeping it — beyond just saving the day.
A few extra things for this movie that I'm not sure really add much to this but whatever lmao:
-I wanted to avoid Marvin being drowned out by bigger, "more popular" characters like Bugs, Daffy, Porky, and Lola, so I avoided them being big parts of the plot until much later through the film.
-I tried adding emotional value to Marvin here.
-I thought it would be fun to explore different races of aliens in Looney Tunes beyond just Martians. Making this race in particular Lovecraft-inspired felt like a good way to convey not all of them are small, cute, and silly like Marvin.
