WHAT I LIKED: 'Flubber,' is about a mad scientist (Robin Williams) who's so distracted by his work - particularly his latest titular creation - that he fails to stick a relationship with the love of his life (Marcia Gay Harden). That's a vaguely engaging narrative to get behind, particularly with Williams at the helm doing his damndest to add heart to his character, as you root for the pair to inevitably get together and succeed.
WHAT I DIDN'T LIKE: In comparable movies, the central macguffin would conveniently serve as some vehicle to guide the character to what they need, here the flubber invention is largely just an annoying distraction that he eventually has to discard to get to what's important. That means all the sequences where we see him working on it feel inconsequential - a fact further emphasised by the use of corny visual effects and a lack of decent atmospheric direction from Les Mayfield.
VERDICT: 'Flubber,' has a potentially engaging character narrative and a brilliant central performance from Robin Williams, but it's let down by how much its macguffin idea distracts from rather than helps that.