Alex states her surprise birthday party that night is 2 weeks before her actual 21st birthday. 10 minutes later she says "why don't we go to a real bar so I can have my first legal drink?"
The detectives at the beginning state that the date is Friday, the 13th of March, a date that last occurred in 2020, presumably establishing the film's events in that year and very soon after that date. However, at about 1hr, the surveillance monitor shows the date as 09-30-2023.
At about 12 mins, when Tim Collins is standing in front of the screen showing Steamboat Willie, his shadow is almost too faint to be seen. He should completely block the light.