Trouble with fgets() and strcpy() - c

Question

I'm writing a C program which begins by opening and reading a file of 50 movie titles, each written on a single line. Next I am attempting to assign each line (or movie title) of the file into each element of an array called FilmArray[51]. I am using strcpy() to do so but the program crashes each time it reaches the first loop of the strcpy and I cannot seem to figure out where I've gone wrong...
int main()
{
int i=0;
char array[51];
char FilmArray[51];
bool answer;
FILE *films;
films = fopen("filmtitles.txt", "r");
if(films == NULL){
printf("\n ************* ERROR *************\n");
printf("\n \"filmtitles.txt\" cannot be opened.\n");
printf("\n PROGRAM TERMINATED\n");
exit(EXIT_FAILURE);
}
while(fgets(array, sizeof array, films) != NULL){
printf("%d. %s",i, array);
strcpy(FilmArray[i], array);
i++;
}

Answer 1

FilmArray is an array of characters, not an array of strings.
So when you're doing
strcpy(FilmArray[i], array);
the compiler will convert the value in FilmArray[i] to a pointer and use that as the destination of the string. This will lead to undefined behavior.
In fact, the compiler should be shouting a warning at you for this, and if it doesn't then you need to enable more warnings because warnings are messages about things that the compiler think are suspect and may lead to UB.

Answer 2

Your code is essentially trying to do an integer to pointer conversion passing char to parameter of type char *. Try using & with strcpy :
strcpy(&FilmArray[i], array);
& designates the use of a pointer for FilmArray[i]

Answer 3

suggest the following code
which compiles with no errors/warnings
is complete (given the posted code)
eliminates a lot of the code clutter
eliminates the 'magic' numbers buried in the code
#include<stdio.h>
#include<stdlib.h>
#define MAX_NUM_FILMS (51)
#define MAX_FILM_TITLE_LEN (51)
int main()
{
int i=0;
char FilmArray[ MAX_NUM_FILMS ][ MAX_FILM_TITLE_LEN ] = {{'\0'}};
FILE *films;
films = fopen("filmtitles.txt", "r");
if(films == NULL)
{
printf("\n ************* ERROR *************\n");
printf("\n \"filmtitles.txt\" cannot be opened.\n");
printf("\n PROGRAM TERMINATED\n");
exit(EXIT_FAILURE);
}
// implied else, fopen successful
while(fgets(&FilmArray[i][0], MAX_FILM_TITLE_LEN, films))
{
printf("%d. %s\n",i, FilmArray[i]);
i++;
}
// other code here
fclose( films ); // cleanup
return(0);
} // end function: main