Noah Calhoun, played by Ryan Gosling, is the one who writes heartfelt love letters to Allie Hamilton in 'The Notebook'.

Mark, played by Andrew Lincoln, uses handwritten signs to express his love for Juliet in 'Love Actually'.

In 'When Harry Met Sally...', Harry's love letter to Sally includes the memorable line, 'You make me want to be a better man.'

In 'Jerry Maguire', Jerry writes a heartfelt love letter to Dorothy on a napkin.

Hazel Grace Lancaster writes a love letter titled 'Our Little Infinity' to Augustus Waters in 'The Fault in Our Stars'.

In '10 Things I Hate About You', Kat Stratford's anonymous love letter to Patrick Verona includes the line, 'I hate the way you make me feel.'

In 'The Princess Bride', Buttercup's love letter to Westley contains the iconic phrase, 'As you wish.'

In 'The Da Vinci Code', a love letter written in code is discovered, leading to a thrilling mystery.

In 'P.S. I Love You', Gerry Kennedy leaves love letters for his wife, Holly, after his death.

In 'Love Story', Oliver Barrett IV's love letter to Jenny Cavilleri includes the famous line, 'Love means never having to say you're sorry.'

In 'Mulan', Mulan writes a love letter to Captain Li Shang on a scroll.

In 'The English Patient', Hana's love letter to Kip includes the line, 'I will never forget you.'

In 'The Fault in Our Stars', Hazel Grace Lancaster writes love letters to Augustus Waters in her diary.

In 'Cyrano de Bergerac', Cyrano's love letter to Roxane expresses his heartfelt love for her.

In 'Before Sunrise', Jesse and Celine exchange love letters written on postcards during their train journey.