Walt Disney Pictures has released a special Valentine's Day greeting from Muppets Most Wanted, featuring Kermit the Frog, Miss Piggy and the criminal Constantine. When Constantine succeeds in stealing a kiss from Miss Piggy, she makes him pay for his dastardly crime. In addition, we have two e-cards for this romantic holiday, featuring happy couples Kermit the Frog and Miss Piggy, along with Gonzo and his chicken girlfriend Camilla. Directed by James Bobin and co-starring Ricky Gervais, Ty Burrell and Tina Fey, Muppets Most Wanted hits theaters on March 21.