credit to be removed

Hello,
I would like to report an error that I am unable to correct myself. 
It concerns the French actor Philippe Chevallier (I) (https://www.imdb.com/fr/name/nm0156697/?ref_=tt_cst_t_3), who is mistakenly listed in the credits of the film 'Stoker' as a songwriter.
The correct person is actually a namesake: Philippe Chevallier, the singer from the French band 'Felipecha' (https://fr.wikipedia.org/wiki/Felipecha) who is already listed in the credits for 'Stoker'. 
I am unable to remove this incorrect credit from the page for Philippe Chevalier (I). Could you please take care of this? Thanks in advance.