i need help making fan~ চলচ্ছবি

i download some clips from the প্রদর্শনী অতিপ্রাকৃতিক with realplayer. i put all the clips into a playlist - but i dont know how to mix the চলচ্ছবি together < to make one big video > অথবা can i with realplayer

ive been trying to make অনুরাগী চলচ্ছবি for like ever - can someone help me :(