Emma Stone is concerned fans won't be satisfied with her performance in 'The Amazing Spider-Man'.

The 23-year-old actress portrays the role of Gwen Stacy in the movie - opposite Andrew Garfield as the titular character - and she admits not everyone is going to be pleased with how she has represented the character.

She said: ''This is 50 years worth of comic book material. There are different Incarnations of Gwen, and I realized that you can't please everybody.

''They're hoping that you can bring this character to life, in the best way that you know how.

''I hope that people are satisfied. I know that not everybody will be, and that's one of those trials of being human, when you learn that not everybody can like you. It is a tough lesson, isn't it?''

Despite her worries, director Marc Webb admits it was an easy decision to cast Emma - who is best known for roles in 'Easy A' and 'The Help'.

He told Collider.com: ''When we did a screen test, what was great was that Emma brought a level of humour and levity that Andrew really responded to, and there was this immediate sense of lightness in the interaction.''