Pyper Braun merits praise, 'Imaginary' otherwise falls flat.
I was never locked into the story and I didn't really care for the characters at any point, even Braun's Alice isn't all that interesting despite a rather great performance from the young actress. DeWanda Wise is a bit dull, while Tom Payne disappoints somewhat - I mean he only has a small role, sure, but his acting is unconvincing... and I know he can actor far better, as seen during his time on TV's 'The Walking Dead'.
The antagonists in this are poorly utilized, the poster bear is prevalent but very boring. It needed a Chucky-esque portrayal, rather than the blank stare we get every few minutes. The ending also drags, I thought it was going to end sooner a few times but it kept finding new ways to stick around; nothing majorly grating, granted. The score is at least OK.
It also, amusingly, took me ages to work out what the bear's name was. I'm not familiar with the name "Chauncey", so genuinely for the longest time thought the name was either "John C" or "Shaun C". It was only when I finally noticed it written down visually that I realised! ๐
In conclusion, credit to Braun but everyone else onscreen and off it could've done better in my opinion.