Worm Holes and Plot Holes at the End of Oak Street

Warning: spoilers ahead for the fairly entertaining dinosaur movie The End of Oak Street, but do not let these spoilers or plot holes stop you from seeing the movie—especially if you're like me and thoroughly enjoy any movie where humans have to survive while being chased by prehistoric megafauna—but the film opens a major can of time-travel worms in order to save Dad-- who gets eaten by a dinosaur, he sacrifices himself to save the family; so when the family finally finds its way out of the Cretaceous period and portals back to 1982, for some reason they pop out a few minutes BEFORE they went on their prehistoric wormhole journey—so now, just for a few minutes, there are two versions of all the characters, so the wife calls her husband to deliver some pizza, so he drives out of the neighborhood that is soon to be transported back in time-- but he's essentially and unknowingly abandoning his family—the family of doubles, so the doubles of the kids and Mom are going back to the Cretaceous to have more adventures, but without dad, they are going ot have to fend for themselves—because the version of the family that just came back are essentially stealing dad from another family/timeline . . . because the original Dad got chomped and eaten by a dinosaur, so they grab his double to complete the family in the present (1982) but now the other family that got sent to the past has no dad . . . so what if THAT family also makes it back? -- dad is really the dad of THAT family, and this "Rick and Morty" type theme is NOT addressed, nor is the fate of the family that gets sent back in time-- now Mom does phone a few people and tell them to get out of the neighborhood before it gets transported, and one of those people is the librarian . . . so she does NOT go back into the past, yet she's the character that saves them from being eaten right before they jump into the portal—but she shouldn't be there at all. . . but maybe don't think about any of these paradoxes and just enjoy the feathered, modernized dinosaurs (interestingly, no one in 1982 remarks on this, even though proto-feathers are a more recent addition to the idea of a dinosaur, but whatever) and hope that big-budget directors and producers and studios keep making stupid movies with giant creatures (maybe there will be a sequel, where the dadless family survives the Cretaceous and makes it back to 1982 and then steals dad back from the original family?)