IPhone – Stream Netflix movie from iPhone to Mac

Well, this is one of those things where there's 101 ways to do it and it's just trial and error to see which works best for you. You could try wired connections using an HDMI cable or composite AV from your iphone to your TV, or there's a variety of aftermarket apps that may work better for you. I've detailed some ideas below:

Connect With HDMI

You'll need to purchase an adaptor for this option.

1. Plug the adapter into your device’s 30-pin iPod connector.
2. Plug one end of an HDMI cable into the HDMI port of the adapter, and the other end into an available HDMI port on your TV.
3. Switch your TV to the appropriate HDMI input. For earlier models such as the iPhone 4, the original iPad, or the fourth-generation iPod Touch, the display won’t be mirrored, but it will show photos and videos in supported apps once you start playing them on the device.

Connect With Composite AV

If your TV doesn’t support HDMI, or if it doesn’t have an available connection, you can link your device to the set through an analog connection, using an Apple Composite AV cable.

1. Plug the adapter into your device’s 30-pin iPod connector.
2. Plug the yellow video cable at the end of the adapter into an available analog video port on your TV.
3. Plug the red and white audio cables at the end of the adapter into the red and white audio ports corresponding to the yellow video input on your TV.
4. Tune your TV to the appropriate composite video input. The display won’t be mirrored, but it will show photos and videos in supported apps once you start playing them on the device.

Connect Wirelessly via Airplay

Apple developed a wireless technology called AirPlay specifically for streaming content from iOS devices to other devices that support it.

1. Make sure that your iPhone is on the same wireless network as your other AirPlay devices.
2. On your iPhone, double-tap the Home button.
3. Swipe the list that appears to the right, until you get to the volume and AirPlay settings.
4. Tap the AirPlay button to bring up a list of supported AirPlay devices on your network.
5. Tap the device to which you would like to stream. A TV icon next to the device indicates that you can stream images, video, and/or audio, while a speaker icon indicates that you can stream only audio.

Connect Wirelessly via DLNA

If you don't want to shell out for an AirPlay-capable device, you may be able to use DLNA instead. These days, many modern TVs support streaming from a local network (wired or wireless) via the DLNA (Digital Living Network Alliance) standard. If your TV supports DLNA (or sometimes just "UPnP") streaming, you can use your iPhone as a DLNA server. Just download and install a DLNA-server app--Media:connect, for example--and you're good to go.

Connect Wirelessly with Aftermarket Apps

You could try iMediaShare or AirVideoEnabler as alternatives to the standard airplay functionality.

Unfortunately the use of such software has a pre-requisite of AirPlay Mirroring, which is not supported by an iPhone 4 at any OS level, hence teh requirement for an iPhone 4s minimum. If you had a device that supports it, then it's pretty straightforward (take a look at this answer elswhere on AskDifferent) but with an iPhone 4, you are out of luck unless someone can suggest a way of enabling it with a Jailbreak hack.