When Steve talks with Patrick and Jeff in the bar, he starts to raise his glass to his mouth. In the next shot, his glass has reached his mouth a little too quickly and he's taking a sip.
When Susan takes the video of Britt Ekland to put back in the cupboard, it's clear that it was not in a VCR player. She picks it up instantly. VCR players take a few seconds to eject a video.