dumbo2/app/Models/Comment.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;

class Comment extends Model
{
    use HasFactory;

    public function film() {
        return $this->belongsTo(Film::class, 'film');
    }

    public function author() {
        return $this->belongsTo(User::class, 'user');
    }
}