X+Y
- Blwyddyn: 2014
- Gwlad: United Kingdom
- Genre: Drama
- Stiwdio: Original Pictures, Head Gear Films, Minnow Films, BBC Film, BFI
- Allweddair: autism, mathematics, child prodigy, death of father, coming of age, social outcast, cambridge university
- Cyfarwyddwr: Morgan Matthews
- Cast: Asa Butterfield, Rafe Spall, Sally Hawkins, Eddie Marsan, Jo Yang, Alex Lawther