How many movies have Olivia Olson and Thomas Brodie-Sangster acted in together?

They have worked on 3 movies together! Their first movie together was Love Actually (2003) while their highest rated movie together was Phineas and Ferb: Night of the Living Pharmacists (2014). They have not worked together since Phineas and Ferb: Night of the Living Pharmacists (2014). They are most known for their comedy films together.