Step 1: Ideas.
Note: I didn't have anything down on paper, this idea was on the spot.
Step 2: Getting Started.
Step 3: Getting Started 2
Step 4: The Background
First I started with a finding a city background on Google images. Pick one that you like, and go with it.
For my background, 5 layers of the background were used. First find a large portion of the picture you like. This should be the structure of the background. Now for the black space, , find parts of the image that will go well with the base structure. Keep doing this until you get something you like.
Erase to the bottom and the top to make it have that 'fading to black' effect.
Step 5: The Focal Point
The first thing you want to do is find a picture or render that you like. For importing your render, go to file, and use 'place'. This allows you to re size your render, and keep the quality good. Press control + T to free transform, and hold 'shift' to re size the render to appropriate size for the poster.
Step 6: The Logo
For my logo, I chose The Dark Knight logo.
The first thing you want to do is pick the magic wand tool. Next you want to click on the black background. Once you have this selected, you can either erase it with the eraser tool or use 'control + x'. Next erase the lettering below it and save it as a PNG file. Next, go to place under file, select your new render, and lace it into the file. Hold 'control + t' to adjust it to a size you like. Effects aren't particularly necessary, but it adds to the effect of the logo.
Step 7: The Logo: Effects
For the 'Inner Shadows', you can play around with the blend mode, angle of the shadow, all that jazz, but I highly recommend a darker grey colour, and an opacity around 50%. Press the OK button once you've found something you like.
For the For the 'Outer Glow', I recommend a much lower opacity. You can play around with blend options and the colour you want to glow. Press the OK button when you are finished.
Step 8: The Logo: Part 2
Once you have the part you want traced, go to Layer at the top of the screen, and go to 'New', then go to 'Layer via Cut'. Once this is done place the copied part over the original. After this go to the 'fx' below the layers, and select inner shadows. For this inner shadow, you want a much darker colour than before, preferably black, with a higher opacity near 100%, and an angle that you like, with any blend option you think looks good.
Step 9: Words.
If you go to Dafonts.com, there you can download fonts for Photoshop, and spice up your movie title a little bit.
First, pick a font you like, then click the download button. Next, open the folder and drag the font onto your desktop. Then right click the font, and press install. Now you can use that font in Photoshop.
The effects on your movie title should go all out. Inner shadows, inner glows, outer glows, and even a black border if you want. Select the fx below the layers once again, and select the ones you want. Play around with them to see what you like. Proceed to do this with whatever other words you put on your poster.
Step 10: Finish Touches.
Go to the 'Layer' option at the top, then go to 'New Adjustment Layer' and then 'Gradient Map'. Here you can play around with whatever you'd like, and whatever colour combinations you want. Once you find something you like, Play around with the blending options and the opacity. This will give it it's effect.