“Supercell” (*1/2 out of four) was a super-derivative action thriller about a young man (Daniel Diemer) who runs away to seek out his father (Skeet Ulrich) and becomes enveloped with him and another storm chaser (Alec Baldwin) as a deadly tornado is in their path and threatens to tear a hole right through the heartland. Diemer is blank in the lead and Ulrich and Baldwin aren’t much better; film takes forever to finally get going and when it does the finale literally looks like outtakes from “Twister” and also “Hard Rain.” Anne Heche has a minor throwaway role in one of her final film appearances.