11 Things You Might Not Know About Modern Family

1. Phil saying he is "going to fix that step" is a running joke throughout the first season.

2. For the first two seasons, Cam and Mitchell's daughter, Lily, is played by a set of twin girls named 'Ella Hiller' and 'Jaden Hiller'. They are not given an on-screen credit.

3. Nolan Gould, who plays "dumb" Luke Dunphy, has actually been a member of Mensa since he was four and is considered a genius.

4. Britney Spears was reportedly offered a role in the middle of Season 3, but by the time producers heard from her people, they had the rest of the season already planned.

5. Julie Bowen (Claire Dunphy) wears a pacemaker.

6. Sofia Vergara (Gloria) was named by Forbes as the highest-paid actress on TV in 2012.

7. Mitchell and Cameron adopted a child directly from Vietnam – which apparently couldn’t happen in real life, as Vietnam forbids adoption by gay couples.

8. Sofia Vergara (Gloria) is actually a blonde.

9. Cam in real life isn't gay.

10. Jay Pritchett also played Al Bundy in Married with Children. The actor used the same prop newspaper for both roles.

11. Michelle Obama has said that Modern Family is her favourite show.