Who do you call when you need an eccentric scientist with a wild head of hair? Christopher Lloyd, natch! The Back to the Future favorite lends his distinctive voice to the Jim Henson Company’s Sid the Science Kid: The Movie, premiering Monday, March 25 on PBS Kids.

This first ever feature-length Sid adventure finds the inquisitive title character and his pal Gabriela winning a science contest where the grand prize is an exclusive visit to the new Super Ultimate Science Museum. Upon arrival, they meet quirky, crazy-tressed Dr. Bonabodon (Lloyd) and his robot tour guides of the future, one of which will short-circuit and create big problems for the Science Kid. Oh, and did we mention there’s a T-Rex?

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