Java Jpa One To Many Problems [требует правки]

I have problem with extracting data. I have next entities.

1. Film
2. FilmManager
3. Ticket

4. FilmSessions

   @Table(name = "FILM_MANAGERS")
   @Entity
   public class FilmManager { 
       @OneToOne(cascade = CascadeType.ALL, fetch = FetchType.EAGER)
       @JoinColumn(name = "FILM_ID",updatable = false,insertable = false)
       private Film film;
   @OneToMany(cascade = CascadeType.REMOVE, fetch = FetchType.EAGER,mappedBy = "filmManager")
   private List(FilmSession) sessions;
   other fields....
   
   }
   

   @Entity
   @Table(name = "FILMS")
   public class Film {
       @OneToOne(mappedBy = "film")
       private FilmManager filmManager;
       @OneToOne(mappedBy = "film")
       private Ticket ticket;
   other fields...
   
   }
   

   @Table(name = "TICKETS")
   @Entity
   public class Ticket {
       @ManyToOne
       @JoinColumn(name = "USER_ID", updatable = false, insertable = false)
       @JsonBackReference
       private User user;
   @OneToOne(cascade = CascadeType.ALL, fetch = FetchType.EAGER)
   @JoinColumn(name = "FILM_ID", updatable = false, insertable = false)
   private Film film;
   
   }
   

   @Table(name = "FILM_SESSIONS")
   @Entity
   public class FilmSession {
   @ManyToOne
       @JoinColumn(name = "FILM_MANAGER_ID",insertable = false, updatable = false)
       private FilmManager filmManager;
   }
   

    @GetMapping("/films/{filmId}")
       public String getFilm(ModelMap modelMap, @PathVariable("filmId") String filmId) {
           FilmManager filmManager = filmManagerService.getFilm(Long.parseLong(filmId));
           modelMap.addAttribute("filmManager", filmManager);
           modelMap.addAttribute("screenshots", resourceExtractor.getScreenShots(filmManager));
           modelMap.addAttribute("sessions", filmManager.getSessions().stream().map((e) -> e.getSessionTime()).collect(joining(",")));
           System.out.println("amount of sessions: " + filmManager.getSessions().stream().count());
           return "filmPage";
       }
   

   amount of sessions: 11
   

That last SOUT outputs 11 when on the screen you can see that i have only one session for this filmManager when it should be only one Session.I found out that everytime i insert a new Ticket in db amount of loaded sessions is getting bigger.so currently i have 11 tickets.What's wrong with this?

here is Tickets table picture

thanks everyone for help.