Lost Movie About Lost Parents And A Stuffed Bunny

So, I grew up with Bright House Networks as my cable provider as a kid. When I was really little (I’d say 4 or 5) my mom would put on the kids on demand channel and I could pick from all the shows and movies that aired on the channels I watched. I’m pretty sure this movie was under HBO Kids but I could be wrong. I know there’s a boy with a little sister who has a stuffed bunny toy. I remember the mom was making them burgers for dinner and the little boy tells the girl that burgers come from cows and she starts crying. That’s all I remember until the end. The mom goes missing or something and the sister gives up her stuffed bunny by holding it in the sky (I think maybe aliens took it.) and then her mom comes home from wherever she was. My mom would make sure that I was on the kids channel so im pretty sure it was for kids. If anyone knows, that would be amazing.