The conference doctor and Doctor David S. Lee are obviously being played by the same actor, except the coat is a different color.
In the shower love sequence, one shot of Emily shows her position to the right. Yet in another shot, she's being guided to her right by Dylan.
When Emily commits suicide by overdosing on painkillers, her glass is almost empty. Yet when she spills it on the bed, it's nearly full.
When Dylan is pushing everything off of his desk with Emily he pushes a stand of file folders off the desk; when it cuts to the next shot they're back on the desk.
The pills are white while in their bottle, but the pills poured into the toilet are red.
Dylan's nasal cannula is clearly facing up and not in his nostrils, given the tissue bandages on his face. In a facial injury like this, the doctor would've poked in holes through the bandages and inserted the cannula through them.
When Leah pulls out her phone, it's heard dialing numbers yet none of them are being hit.
The laptops are obviously not functioning.
Emily informs Dylan about how late he's working yet from the window blinds, it's clearly daylight.
Jim can be seen moving briefly, even though he's supposed to be dead.
The applauding crowd sound effect is cut off at some points.
When Jim spills his beer bottle at the dinner table, it's clearly filled with water.
The crowd gathered around Dylan's body don't do anything.
Dylan is the only person from his office building about to cross the street, but the shot unexpectedly cuts to the legs of three people walking across the street.
The young Dylan points out a mushroom to Leah, yet he lingers holding out his hands to it.
The prologue supposedly takes place in the past, yet the automobiles are from the 2000s.
From a low shot, the boom mic's shadow passes over a few pedestrians as they gather around Dylan's body.
Certain characters routinely reiterate their dialog, twice.
When Dylan talks with Emily, he's never speaking with her on the other end.
Dylan states that he's been in love with Leah since the young age of 8, yet the appointment with Doctor A. Andra goes to show that he loved her since he was 9.