In Captain Phillips (2013), the medic in the infirmary scene was a real navy medic (Danielle Albert). The director told her to treat Tom Hanks like it was a "regular military exercise". The sequence was unscripted and improvised.
42X-Men: First Class
X-Men: First Class (2011) young Erik Lehnsherr is told to move a coin. The 5 Reichsmark coin was usually made of Silver. Silver has a weak magnetic signature. Moving it would be extremely difficult for someone who isn't in control of their powers.