When Leo remembers who he is and leaves in the limo, Molly tries to chase him on her bike. Shots shown from behind her reveals that her left shoe is untied (you can see the loose laces dangling), while shots from in front of her show her shoe tied up neatly with no dangling.
When Kate goes to pick up Leonardo at the hospital, she says "here is our marriage license", but hands him a marriage certificate. A marriage license is not a certificate of a marriage. A marriage license is what you get from city hall that allows you to get married, a marriage certificate is what the city/county gives you once you've gotten married and mail in the filled out marriage license.
The football game the family is watching, before Leo finds the condoms in the car, is the Seattle Seahawks playoff game vs the Detroit Lions. This game took place on January 7th 2017 (The game would have started at 5:15p.m. local time). That means that scene would have taken place in the middle of winter, but when they go outside it is warm and sunny and everyone is wearing summer clothes.
Leonardo is seen wearing a Matt Hasselbeck Seattle Seahawks jersey. The jersey he has is inaccurate, as Hasselbeck never wore that style of jersey. Hasselbeck left the team after the 2010 season. The Seahawks didn't change to the depicted style of uniform until 2012. Unless we are to believe that Leonardo created a customized jersey of Hasselbeck in the newer style that was never actually worn (highly unlikely), this doesn't make sense.